I am hoping some one out there has a good idea for a simple problem. These over head light fixtures have the top piece that screws off and then gives you access to the lamp. The problem is that some times they do not screw off easily and make a 5 minute job very difficult and long. I would like to just take a big chain wrench and twist it off! But a lot of people get upset when you make big deep dark marks on the pretty white paint. Does any one have any bright ideas on how to unscrew these fixtures with out causing damage?